[ka-Map-users] tiling order / priority?

Brent Pedersen bpederse at gmail.com
Fri Nov 11 14:45:09 EST 2005


by the way, that messes up the ordering of layers! i've been using it for
point/line layers.

On 11/11/05, Brent Pedersen <bpederse at gmail.com> wrote:
>
> hi, this works. not pretty. find the comment in init.php and insert this
> code. the last line that's changed is commented.
> if you add: or oLayer->group == "" after MS_OFF, it will give priority to
> __base__ layers as well.
>
> -brent
>
> /*
> * for this version, I have chosen to use groups to turn layers on and off
> * a special group called __base__ is created to hold all ungrouped layers
> * This group cannot be turned on/off in the interface (or at least not
> * using the default legend template
> */
> $onLayers = array();
> $offLayers = array();
> for($i=0;$i<$oMap->numlayers;$i++){
> $oLayer = $oMap->getLayer($i);
> if($oLayer->status!=MS_OFF){ # add code here for __base__ layers
> array_push($onLayers,$oLayer);
> }else{
> array_push($offLayers,$oLayer);
> }
> }
> $allLayers=array_merge($onLayers,$offLayers);
>
> ##################ABOVE INSERTED ############
> #############BELOW CHANGED############
> $szLayers = '';
> for($i=0; $i<$oMap->numlayers; $i++)
> {
> $oLayer = $allLayers[$i]; # this line is changed !!!!!!
> if ($oLayer->group != '')
> {
>
>
> On 11/11/05, Charlton Purvis <cplist at earthlink.net> wrote:
> >
> > Hi, all:
> >
> > Let's say that I've got 5 groups that a user can toggle on/off.
> >
> > g1, g2, g3, g4, g5
> >
> > My question is: what is the order that Ka-Map starts hitting tile.php?
> > If
> > I have only g3 and g5 selected, I'd much rather have g3 and g5 start
> > caching, but I suspect that it always goes in the order of the .map. So
> > in
> > this case it would cache g1 and g2 before showing anything other than
> > the
> > base layers to the user.
> >
> > Which translates into a user waiting for layers to cache that s/he might
> > not
> > be interested in viewing. It would be ideal to give them their selected
> > layers as a higher priority.
> >
> > I hope that makes some sense!
> >
> > Charlton
> >
> >
> > _______________________________________________
> > ka-Map-users mailing list
> > ka-Map-users at lists.maptools.org
> > http://lists.maptools.org/mailman/listinfo/ka-map-users
> >
>
>
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